Do you know what's in your drinking water? Did you know the drinking water quality, or the amount of contaminants, varies around the country? Click on your city below to investigate how your drinking water ranks versus other cities. Then consider the easy ways you can become more water wise by adding a water filter to your home.

The University of Cincinnati has summarized drinking water quality for U.S. major metropolitan areas, using local community drinking water reports listing EPA-regulated contaminants. Learn more about the U.C. Water Study.